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man: document that we support tcpwrappers only for access control
We do not support, and explicitly never want to support environment variable settings and suchlike in tcpwrappers. https://bugs.freedesktop.org/show_bug.cgi?id=45143
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@ -645,14 +645,19 @@
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conjunction with socket-activated
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services, and stream sockets (TCP) in
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particular. It has no effect on other
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socket types (e.g. datagram/UDP) and on processes
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unrelated to socket-based
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socket types (e.g. datagram/UDP) and
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on processes unrelated to socket-based
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activation. If the tcpwrap
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verification fails daemon start-up
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will fail and the connection is
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terminated. See
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<citerefentry><refentrytitle>tcpd</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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for details.</para></listitem>
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for details. Note that this option may
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be used to do access control checks
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only. Shell commands and commands
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described in
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<citerefentry><refentrytitle>hosts_options</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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are not supported.</para></listitem>
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</varlistentry>
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<varlistentry>
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